Part #: 21S - 01 - 0565 - 4. These Deatschwerks fuel injectors are a great fit for 2002 - 2014 WRX, 2007 - 2021 STI, 2007 - 2012 Legacy GT, 2007 - 2009 Outback XT, and 2006 - 2013 Forester XT models. They're engineered to match your OEM harness, fuel rail, and manifold, using only high - quality OEM cores. Each set is balanced within a 2% variation, making tuning a breeze. You'll get better fitment, easier tuning, and higher reliability. These injectors come with a comprehensive 12 - month warranty. Deatschwerks tests every set for flow balancing and quality assurance, analyzing them at over 40 data points on their in - house injector flow bench. Even though they're made from used OEM cores, you're getting a top - notch, reliable, and high - performing product at an unbeatable price.
Using these Deatschwerks fuel injectors is straightforward. Just install them following your vehicle's standard installation process as they are designed to fit your OEM harness, fuel rail, and manifold. When it comes to maintenance, it's a good idea to regularly check the injectors for any signs of leaks or blockages. If you notice any performance issues with your vehicle, such as rough idling or poor acceleration, it could be a sign that the injectors need attention. For long - term reliability, always use high - quality fuel. Remember, these injectors come with a 12 - month warranty, so if you run into any problems within that time, you're covered.
